From the privacy point of view, it is just impossible that I can't delete my account. If your server was situated in Germany you would - to my best knowledge - even be obliged by law to offer me this opportunity.

The fact is: I want my account deleted, I don't want any account-specific data on your servers and I don't think I'm the only one with that oppinion!

@Genetic, our working assumption is that your posts have added value to the community: either you've asked interesting questions which elicited informative answers or you've contributed answers to interesting questions. Even if you assert that none of your questions or answers have any technical value at all, your posts provide bridging context: removing them would make the remaining posts more confusing and harder to understand. Deleting your account and all your posts would be poor return to the all-volunteer community that supports the Gentoo Linux distribution.

There are other reasons as well. Suffice it to say that it is our longstanding policy not to delete user accounts.

- John_________________I can confirm that I have received between 0 and 999 National Security Letters.

John, surely Genetic's user account could be deleted without deleting his posts? I thought phpBB forum software allows an administrator to delete a user account without deleting the user's posts and without removing the username itself, which just becomes 'plain text', as it were? See, for example, this phpBB forum post by a user donnie who was subsequently deleted by an administrator of that forum. Notice that the username is in black text and is not a hyperlink, unlike un-deleted users. Some other forum software replaces the user name with 'Guest' in posts by a deleted user account, leaving the posts intact. So presumably Genetic's request is not impossible in the case of the Gentoo Forums?_________________~amd64, OpenRC, FGLRX, KDE
Fitzcarraldo's blog

French law would also inforce privacy, but french law wouldn't be applied to an account named "Genetic", but to an account named as its real name author.
And even with your real name account, french law would allow any forum to kept your posts for a delay, to make sure anything you've said would stay avaiable to be read in case you've infringe a law by saying something not appropriate, like public insult, racism or false assertion on someone...
I don't know the german specific privacy policy, but i'm sure your law is also > your privacy upto a certain delay.

Now it looks you are stuck, well in fact it's easy : 1/ don't use the account anymore 2/ ask a name change in the forum name change thread to get your genetic nick virginity back.
Because in name change post, you will see "one you cannot know" asking to change name to "thatname" and his post is now hold by "thatname", so i suppose a nick change will change the nick on all your posts, hey hey, or the mods change the nick also in the name change asking post.